After writing an equation for each of the T-shirt companies, Jill wrote this equation: 30 + 6x = 20 + 8x Why do you think she wrote that?

Step-by-step explanation:

she wrote it to solve the total amount spent on both T shirt.

30+6x=20+8x-8x

30+6x-8x=20

30-30-2x=20

-2x=20-30

-2x/-2=-10/-2

x=5

i used to know how to do this in 7th but i forget easily

step-by-step explanation:

56.6

step-by-step explanation:

the ratio of the perimeters is equal to the scale.

the ratio of the areas is equal to the square of the scale.

34 / 20 = k

a / 19.6 = k²

substituting:

a / 19.6 = (34 / 20)²

a = 19.6 (34 / 20)²

a ≈ 56.6